Louis
026008473a
Reste des TODO dans FileList.java et dans FilePart.java + la documentation à faire. Ça ne compile pas encore, et c’est normal (à cause des TODOs).
42 lines
1.5 KiB
Java
42 lines
1.5 KiB
Java
package protocolP2P;
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import protocolP2P.Payload;
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import protocolP2P.RequestResponseCode;
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import exception.ProtocolError;
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public class FilePart extends Payload {
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private static final RequestResponseCode requestResponseCode = RequestResponseCode.LOAD_RESPONSE;
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private String filename;
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private int totalSize;
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private int offset;
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private byte[] partialContent;
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public FilePart(String filename, int totalSize, int offset, byte[] partialContent) {
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this.filename = filename;
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this.totalSize = totalSize;
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this.offset = offset;
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this.partialContent = partialContent;
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}
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public FilePart(byte[] datagram) throws ProtocolError {
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//TODO
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assert RequestResponseCode.fromCode(datagram[RequestResponseCode.RRCODE_POSITION]) == RequestResponseCode.LOAD_RESPONSE : "FilePart subclass is incompatible with this datagram, request/response code must be checked before using this constructor";
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int size = (datagram[PAYLOAD_SIZE_POSITON] << (8*3)) | (datagram[PAYLOAD_SIZE_POSITON+1] << (8*2)) | (datagram[PAYLOAD_SIZE_POSITON+2] << 8) | datagram[PAYLOAD_SIZE_POSITON+3];
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}
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/** To datagram with padding */
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public byte[] toDatagram() {
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byte[] datagram; // java initialize all to zero
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// size is keep blank (ProtocolP2PDatagram will handle it)
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// set request/response code
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datagram[RequestResponseCode.RRCODE_POSITION] = requestResponseCode.codeValue;
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// bits 16-31 are reserved for future use
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//TODO size
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int size = ;
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for(i=0;i<4;i++) {
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datagram[Payload.PAYLOAD_SIZE_POSITON + i] = (byte) (size >> (8 * (3 - i)) & 0xFF);
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}
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//TODO content
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}
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}
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